Lets see your carburetors.

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Feb 13, 2014 | 08:40 PM

#26

lwrobins

Thread Starter

seattle seven

Joined: Nov 2012

Posts: 392

Likes: 46

From: bellingham wa

Quote:

Originally Posted by ioTus

When i still had the Dellorto:

Was not jetted right, ran WAY fat.

lwrobins - do you have your vacuum advance hooked up? I noticed my idle and low rpm range become WAY smoother when I hooked mine back up.

Guess I am biased but love the look of the dell. with RB intake...

Feb 13, 2014 | 09:25 PM

#27

ioTus

'84 5-letter

iTrader: (5)

Joined: Jul 2002

Posts: 3,219

Likes: 8

From: Washington State

Yeah man I'm almost regretting going EFI, those side drafts are just so perfect sitting on top a 13b!

But the tunability, FC ignition and 2-stage variable intake takes the win for EFI this round

Feb 14, 2014 | 06:22 AM

#28

Jeff20B

Lapping = Fapping

iTrader: (13)

Joined: Aug 2001

Posts: 15,725

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From: Near Seattle

Quote:

Originally Posted by placd1

Thanks Jeff20B. The venturis have already been enlarged to compliment the maximum sized jets.I'll remove my filter and take and post a pic of the venturis later. One thing I didn't mention is that the 13b is a half bridgeport

I simply run out of breath when I hit +6500 rpm

Well that's your problem right there. Your engine is too big for the carb.